FR2428004A1 - Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln. - Google Patents

Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln.

Info

Publication number
FR2428004A1
FR2428004A1 FR7816767A FR7816767A FR2428004A1 FR 2428004 A1 FR2428004 A1 FR 2428004A1 FR 7816767 A FR7816767 A FR 7816767A FR 7816767 A FR7816767 A FR 7816767A FR 2428004 A1 FR2428004 A1 FR 2428004A1
Authority
FR
France
Prior art keywords
tio2
soln
acid
colour index
prepd
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR7816767A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dong Hwa Titanium Industrial Co Ltd
Original Assignee
Dong Hwa Titanium Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dong Hwa Titanium Industrial Co Ltd filed Critical Dong Hwa Titanium Industrial Co Ltd
Priority to FR7816767A priority Critical patent/FR2428004A1/en
Publication of FR2428004A1 publication Critical patent/FR2428004A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Controlled particle size TiO2 is prepd. by (a) heating aq. H2SO4 contg. is not >200 g TiO2/l until the degree of hydrolysis is 10-20% and filterable ppte. particles are formed, (b) filtering to remove TiO2 particles, giving an almost clear filtrate, (c) further hydrolysing the filtrate and adding 6-8 pts.vol. original aq. acid TiO2 soln. per pt. filtrate and (d)recovering hydrolysed ppte. which can be calcined to give TiO2 having a colour index >=1500. Pref. the acid soln. of TiO2 (a) is heated for 1-2 hr. at 90 degrees C-b.pt. and further hydrolysis (c) is by heating at 90 degrees C-b.pt. with aq. acid TiO2 soln. added over 5-8 hrs. The TiO2 is used as a pigment. It colour index of >=1500 is higher than the conventional 1250. The aq. acid-TiO2 soln. is generally obtd. by dissolving e.g. ilmenite ore in H2SO4.
FR7816767A 1978-06-05 1978-06-05 Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln. Pending FR2428004A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816767A FR2428004A1 (en) 1978-06-05 1978-06-05 Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816767A FR2428004A1 (en) 1978-06-05 1978-06-05 Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln.

Publications (1)

Publication Number Publication Date
FR2428004A1 true FR2428004A1 (en) 1980-01-04

Family

ID=9209083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816767A Pending FR2428004A1 (en) 1978-06-05 1978-06-05 Titanium di:oxide pigment having colour index about 1500 - prepd. by two=stage hydrolysis of aq. acid soln.

Country Status (1)

Country Link
FR (1) FR2428004A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795467A (en) * 1928-02-02 1931-03-10 Commercial Pigments Corp Production of titanium dioxide
US1959765A (en) * 1932-11-29 1934-05-22 Southern Mineral Products Corp Process of hydrolyzing titaniferous solutions
US3501271A (en) * 1966-11-05 1970-03-17 British Titan Products Tio2 precipitation process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795467A (en) * 1928-02-02 1931-03-10 Commercial Pigments Corp Production of titanium dioxide
US1959765A (en) * 1932-11-29 1934-05-22 Southern Mineral Products Corp Process of hydrolyzing titaniferous solutions
US3501271A (en) * 1966-11-05 1970-03-17 British Titan Products Tio2 precipitation process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1978 *

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